UV-photoelectron Spectroscopy of Unhindered Germylenes and Carbon-arsenic Multiple-bonded Species

Abstract

Ultraviolet photoelectron spectroscopy (UV-PES) is a well established technique that provides ionization energies of molecules in the gas phase. Flash vacuum thermolysis or vacuum gas-solid reactions coupled with UV-PES are especially suited for the generation and analysis of small amounts of short-lived species in real-time. These experimental data, supported by quantum chemical calculations for the consistency of the assignments of PES spectra, provide fundamental information about electronic structure and bonding that is obtained by no other technique. This paper aims to give some representative original examples chosen from Pau’s research group that illustrate the advantages and wide applicability of these techniques. These examples show the selected data and conclusions which focus on the reactivity of low-coordinated of Main Group IV and V elements. Germylenes and simplest carbon-arsenic multiple bonded species ware successfully characterized using UV photoelectron spectroscopy – a very powerful, direct characterization instrument.